Refrigerating unit



July 18, 1933. F. D. PELTIER 1,918,981

REFRIGERATING UNIT Filed July 3, 1931 3 Sheets-Sheet l INVENTOR. rank D. PeH'ier ATTORNEY July 18, 1933. D pE 1- 1,918,981

REFRIGERATING UNIT Filed July 5, 1931 3 Sheets-Sheet 2 @264. Z4 Z0 20 O INVENTOR.

Frank D. Pelrier July l8, 1933. F. D. PELTIER REFRIGERATING UNIT Filed July 3. 1931 3 Sheets-Sheet 3 INVILINTOR. Frank D. Pelfier ATTORNEY Patented July 18, 1933 UNITED STATES PATENT OFFICE FRANK D. PELTIER, OF EVANSVILLE, INDIANA, ASSIGNOR TO SERVEL, INC OF YORK, N. Y., A CORPORATION OF DELAWARE BEFRIGERATING UNIT Application filed July 3, 1931. Serial No. 548,497.

This invention relates to refrigerators of the compression type and more particularly to refrigerators having a condenser cooled either by air or water.

It is an object of this invention to provide means for changing a water cooled refrigerating unit into an air cooled unit, or the reverse, without producing an entirely different machine for each type of unit.

Other objects and advantages will be apparent from the following detailed description when taken in connection with the accompanying drawings, in which Fig. 1 is a front elevation of a refrigerating unit having an air cooled condenser;

Fig. 2 is an end elevation looking from the right in Fig. 1;

Fig. 3, a front elevation of the refrigerating unit of Fig. 1 provided with a water cooled condenser;

Fig. 4, a top plan view of the structure in Fig. 3;

Fig. 5, a fragmentary detail section on the line 55 of Fig. 3;

Fig. 6, a fragmentary detail illustrating thei supporting brackets for the condensers; an I Fig. 7 is a detail of the bracket which supports the water valve shown in Figs. 3 and 4.

Referring to the drawings, upon a base 10 is mounted a compressor 11 driven by a motor 12. The condenser receives the refrigerant vapor discharged by the compressor and this invention contemplates the provision of an air cooled condenser 13 or a water cooled condenser 14. The air cooled condenser shown in Figs. 1 and 2 is con- ,nected with the compressor by means of a pipe 15 which is connected with the upper end of the condenser, and the lower end of the condenser is connected by a pipe 16 with a receiver 17 confined within the base 10. The refrigerant vapor discharged from the compressor is liquefied in the condenser and flows into the receiver. The receiver is connected at its opposite end by a pipe 18 to an evaporator, not shown, which may be of any desired type, and said evaporator is con- 'may be secured in the same nected by a pipe, not shown, to the compressor, which latter pipe of course forms a suction line. The condenser 13 may be of any desired air cooled type and for the purpose of illustration is shown as formed of a single pipe extended back and forth throughout the height of the condenser in substantially horizontal loops, such loops being provided with vertical fins spaced apart to form surfaces from which the heat may be disseminated. A fan F may be employed for forcing a draft of air through the condenser. The condenser 13 is provided with supporting feet 19 for engagement with brackets 20, which are detachably connected by means of cap screws or other fastening means, not shown. The brackets are disposed in horizontal position, one adjacent each foot of the condenser. To remove the condenser it is only necessary to break the cognections to the compressor and the receiver and the fastening screws which hold the condenser upon its supporting brackets.

In lieu of the condenser shown in Figs. 1 and 2, a condenser of the type shown in Figs. 3, 4, and 5 may be employed as previously described. This condenser 14 is formed of inner and outer concentric pipes wound around a mandrel to form a flattened spiral construction with spacing and supporting brackets at each end of the same. The supporting brackets are spaced apart substantially equal to the distance between the sides of the condenser 13 and feet are provided on the supporting brackets corresponding to the feet on the condenser 13 so that the condenser position as the condenser 13.

A water valve 21 controls the flow of water through the condenser, water being admitted to the condenser from a source of supply, pot shown, and being conducted from the condenser through pipe 23 to the water valve 21 from which it is discharged through pipe 22. The water valve 21 is supported upon an auxiliary bracket 24, which is complementary to the bracket at the left side of the condenser. V

Refrigerant vapor from the compressor enters through the pipe to the condenser and a branch line 26 connects this supply line from the compressor to the water valve and controls the flow of water in proportion to Y If desired, both the condensers 13 and 14 may be employed and supported upon the same brackets'with the compressed refrigerant gassupplie'dto either or both of the condensersand the condensers used interchangeably or simultaneously.

It will be apparent to those skilled in the art that various other changes and modifications may be made without departing from thespirit of the invention and therefore the invention is not limited to what is shown in the drawings and described in the specification but only as indicated in the appended claims.

What is claimed is:

1. The combination of a base, a compressor on said base, means for driving said compressor, brackets mounted on said base and provided with openings for receiving fastening elements, a water cooled condenser having feet spaced corresponding to the spacing of the openings in said supporting brackets, means to control the flow of water for cooling the condenser, and an auxiliary bracket carried by one of said first mentioned brackets at one side of the same said bracket adapted to support said means.

2. A refrigerating unit comprising a base, a compressor on said base, means for driving said compressor, laterally extending brackets on said base adapted to support a condenser, one of said brackets having means for detachably supporting another bracket.

FRANK D. PELTIER.

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